Westermo RM-115S - Manual (Page 33)

115S Serial I/O Module User Manual
man_115S_1.14.docx Page 33
Once the dip switches on the unit are set, tick the checkbox on the form, and click Save
configuration. Check the 115S Detected panel to ensure that the analog mode has been
updated (to Voltage, differential).
Clicking Read from 115S will read the scales out of the unit (if any) and display them in
the scales grid. Note that the dip switches should be set correctly for this result to be
relevant.
Choose the desired scale for each channel in the Scale box. Click the Save scales to 115S
button, and check that the scales are updated in the 115S Detected panel.
4.4.2 Current input
Current inputs may be selected in the scales 0 to 10mA, 0 to 20mA, or 4 to 20mA. For
each scale, the minimum to maximum signal levels are represented by 4000 hex to C000
hex. Table 4-2 shows how the 115S-12 current readings translate to outputs in other
ELPRO products.
115S-12
Current scale
115S-12
Input current
(mA)
105-G
Register value
(hex)
105-1
Output current
(mA)
105-3
Output current
(mA)
0 to 10mA 0 4000 4 4
10 C000 20 20
0 to 20mA 0 4000 4 4
20 C000 20 20
4 to 20mA 0 2000 0.5
*
0
4 4000 4 4
20 C000 20 20
Table 4-2: Compatibility of 115S-12 current inputs with other ELPRO products.
* Reduced accuracy for less than 4mA in 105-1.